I am running full ZEOvit. Overall I'm happy with the results but I've made a few mistakes. The best advice I could give you is print out the ZEOvit guide and read the material front to back at least three times. Start out with the basic four and take it slow. It's not as expensive as everyone thinks, especially since the products are very concentrated compared to probido, brightwell, fauna marin, etc.
You should become a member of the ZEOvit forum and start asking questions. One of the most helpful forums I've been a part of. Good luck!